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Lesson Plan

9. Ocean World, Day 1: Practice comparing numbers (FP)

teaches Common Core State Standards CCSS.Math.Content.1.NBT.B.3 http://corestandards.org/Math/Content/1/NBT/B/3
teaches Common Core State Standards CCSS.Math.Practice.MP2 http://corestandards.org/Math/Practice/MP2
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Lesson objective: Compare two two-digit numbers using a < or > symbol.

This lesson helps to build fluency with two-digit comparisons. The game Ocean World is used here because it supports place value connections. This work develops students' understanding that two two-digit numbers can be compared using the < or > symbol.

Students engage in Mathematical Practice #2 (reason abstractly and quantitatively) as they critically think about the relationship between quantities, using flexible thinking of mathematical symbols.

Key vocabulary:

  • compare
  • create
  • digit
  • equals sign
  • equation
  • less
  • less than
  • greater than
  • more
  • ones
  • similar
  • symbol
  • tens
  • value

Special materials needed:

  • base ten blocks
  • connecting cubes
  • Ocean World cards
Related content

Appears in

Interpreting and using symbols in numeric expressions and comparisons

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